Customer Reviews for 3M Filtrete 20 x 25 x 4-Inch Algeren Reduction Pleated Furnace Filter - Must Be Purchased In Quantities of 4

The Filtrete, 20" x 25" x 4", Allergen Reduction Filter, 6 Month Filter, For Housing Units Accommodating 4 " Nominal Size Filters & Is For Residential Use, Electrostatically Charged, Attracts & Captures Particles Like Pollen, Mold Spores, & Dust Mite Debris, MPR Rating 1750, Lasts Up To 120 Days.